Add support for Intel Granite Rapids CPUs

[RonRahaman]

Hi all, I'd be grateful if you could add a definition for Intel Granite Rapids.

From our machine, is an excerpt from /proc/cpuinfo:

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 173
model name      : Intel(R) Xeon(R) 6972P
stepping        : 1
microcode       : 0x1000380
cpu MHz         : 2400.000
cache size      : 491520 KB
physical id     : 0
siblings        : 96
core id         : 0
cpu cores       : 96
apicid          : 0
initial apicid  : 0
fpu             : yes
fpu_exception   : yes
cpuid level     : 36
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb cat_l3 cat_l2 cdp_l3 intel_ppin cdp_l2 ssbd mba ibrs ibpb stibp ibrs_enhanced tpr_shadow flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm rdt_a avx512f avx512dq rdseed adx smap avx512ifma clflushopt clwb intel_pt avx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local split_lock_detect avx_vnni avx512_bf16 wbnoinvd dtherm ida arat pln pts hwp hwp_act_window hwp_epp hwp_pkg_req hfi vnmi avx512vbmi umip pku ospke waitpkg avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg tme avx512_vpopcntdq la57 rdpid bus_lock_detect cldemote movdiri movdir64b enqcmd fsrm md_clear serialize tsxldtrk pconfig arch_lbr ibt amx_bf16 avx512_fp16 amx_tile amx_int8 flush_l1d arch_capabilities
vmx flags       : vnmi preemption_timer posted_intr invvpid ept_x_only ept_ad ept_1gb ept_5level flexpriority apicv tsc_offset vtpr mtf vapic ept vpid unrestricted_guest vapic_reg vid ple shadow_vmcs pml ept_violation_ve ept_mode_based_exec tsc_scaling usr_wait_pause notify_vm_exiting ipi_virt
bugs            : spectre_v1 spectre_v2 spec_store_bypass swapgs bhi
bogomips        : 4800.00
clflush size    : 64
cache_alignment : 64
address sizes   : 52 bits physical, 57 bits virtual
power management:

and the output from lscpu

Architecture:             x86_64
  CPU op-mode(s):         32-bit, 64-bit
  Address sizes:          52 bits physical, 57 bits virtual
  Byte Order:             Little Endian
CPU(s):                   192
  On-line CPU(s) list:    0-191
Vendor ID:                GenuineIntel
  Model name:             Intel(R) Xeon(R) 6972P
    CPU family:           6
    Model:                173
    Thread(s) per core:   1
    Core(s) per socket:   96
    Socket(s):            2
    Stepping:             1
    CPU(s) scaling MHz:   36%
    CPU max MHz:          2400.0000
    CPU min MHz:          800.0000
    BogoMIPS:             4800.00
    Flags:                fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clfl
                          ush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm con
                          stant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpui
                          d aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx smx est
                          tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt
                           tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpui
                          d_fault epb cat_l3 cat_l2 cdp_l3 intel_ppin cdp_l2 ssbd mba ibrs ibpb stibp
                          ibrs_enhanced tpr_shadow flexpriority ept vpid ept_ad fsgsbase tsc_adjust bm
                          i1 avx2 smep bmi2 erms invpcid cqm rdt_a avx512f avx512dq rdseed adx smap av
                          x512ifma clflushopt clwb intel_pt avx512cd sha_ni avx512bw avx512vl xsaveopt
                           xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local spl
                          it_lock_detect avx_vnni avx512_bf16 wbnoinvd dtherm ida arat pln pts hwp hwp
                          _act_window hwp_epp hwp_pkg_req hfi vnmi avx512vbmi umip pku ospke waitpkg a
                          vx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg tme avx512_vpopcn
                          tdq la57 rdpid bus_lock_detect cldemote movdiri movdir64b enqcmd fsrm md_cle
                          ar serialize tsxldtrk pconfig arch_lbr ibt amx_bf16 avx512_fp16 amx_tile amx
                          _int8 flush_l1d arch_capabilities
Virtualization features:
  Virtualization:         VT-x
Caches (sum of all):
  L1d:                    9 MiB (192 instances)
  L1i:                    12 MiB (192 instances)
  L2:                     384 MiB (192 instances)
  L3:                     960 MiB (2 instances)
NUMA:
  NUMA node(s):           6
  NUMA node0 CPU(s):      0-31
  NUMA node1 CPU(s):      32-63
  NUMA node2 CPU(s):      64-95
  NUMA node3 CPU(s):      96-127
  NUMA node4 CPU(s):      128-159
  NUMA node5 CPU(s):      160-191
Vulnerabilities:
  Gather data sampling:   Not affected
  Itlb multihit:          Not affected
  L1tf:                   Not affected
  Mds:                    Not affected
  Meltdown:               Not affected
  Mmio stale data:        Not affected
  Reg file data sampling: Not affected
  Retbleed:               Not affected
  Spec rstack overflow:   Not affected
  Spec store bypass:      Vulnerable
  Spectre v1:             Vulnerable: __user pointer sanitization and usercopy barriers only; no swapg
                          s barriers
  Spectre v2:             Vulnerable; IBPB: disabled; STIBP: disabled; PBRSB-eIBRS: Not affected; BHI:
                           Vulnerable
  Srbds:                  Not affected
  Tsx async abort:        Not affected